BD37A19F Ver la hoja de datos (PDF) - ROHM Semiconductor
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BD37A19F Datasheet PDF : 18 Pages
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BD37Axx Series BD87Axx Series BD99A41F
●Absolute Maximum Ratings (Ta=25℃)
Parameter
Power supply voltage *1
Symbol
VDD
Ratings
Unit
−0.3 to 10
V
CT pin voltage
VCT
−0.3 to VDD + 0.3
V
CTW pin voltage
VCTW
−0.3 to VDD + 0.3
V
RESET pin voltage
VRESET
−0.3 to VDD + 0.3
V
INH pin voltage
VINH
−0.3 to VDD + 0.3
V
CLK pin voltage
Power dissipation
VCLK
Pd
−0.3 to VDD + 0.3
V
470*2
550*3
mW
Operating ambient temperature
Topr
−40 to + 105
℃
Storage temperature
Tstg
−55 to + 125
℃
Maximum junction temperature
Tjmax
125
℃
*1 Do not exceed Pd.
*2 MSOP8 : Reduced by 4.70 mW/℃ over 25℃, when mounted on a glass epoxy board (70 mm × 70 mm × 1.6 mm).
*3 SOP8 : Reduced by 5.50 mW/℃ over 25℃, when mounted on a glass epoxy board (70 mm × 70 mm × 1.6 mm).
●Recommended Operating Ratings(Ta = −40℃ to 105℃)
Parameter
Symbol
Min.
RESET power supply voltage
VDD RESET
1.0
WDT power supply voltage
VDD WDT
2.5
Max.
Unit
10
V
10
V
Datasheet
●Electrical Characteristics
(Unless otherwise specified, Ta = −40℃ to 105℃, VDD = 5V)
Parameter
Symbol
Min.
Limits
Typ.
[Overall]
Total supply current 1
(during WDT operation)
IDD1
—
5
Total supply current 2
(when WDT stopped)
IDD2
—
5
Output leak current
Ileak
—
—
Max.
14
14
1
Unit
Conditions
µA
INH : WDT ON Logic Input
CTW = 0.1µF
µA INH : WDT OFF Logic Input
µA VDD = VDS = 10V
Output current capacity
IOL
0.7
—
—
mA VDD = 1.2V, VDS = 0.5V
[RESET]
1.9V Detect VDET1
1.871
1.900
1.929
V Ta = 25℃
Detection
voltage 1
2.8V Detect
2.9V Detect
3.4V Detect
VDET1
VDET1
VDET1
2.758
2.886
3.349
2.800
2.930
3.400
2.842
2.974
3.451
V Ta = 25℃
V Ta = 25℃
V Ta = 25℃
4.1V Detect VDET1
4.039
4.100
4.162
V Ta = 25℃
1.9V Detect VDET2
1.852
1.900
1.948
V Ta = −40℃ to 105℃
Detection
voltage 2
2.8V Detect
2.9V Detect
3.4V Detect
VDET2
VDET2
VDET2
2.730
2.857
3.315
2.800
2.930
3.400
2.870
3.003
3.485
V Ta = −40℃ to 105℃
V Ta = −40℃ to 105℃
V Ta = −40℃ to 105℃
4.1V Detect VDET2
4.007
4.100
4.202
V Ta = −40℃ to 105℃
1.9V Detect Vrhys VDET×0.03 VDET×0.13 VDET×0.19 V Ta=−40℃～105℃
2.8V Detect Vrhys VDET×0.018 VDET×0.045 VDET×0.060 V Ta=−40℃～105℃
Hysteresis
width
2.9V Detect
3.4V Detect
Vrhys
Vrhys
VDET×0.02 VDET×0.05 VDET×0.06
VDET×0.02 VDET×0.05 VDET×0.07
V Ta=−40℃～105℃
V Ta=−40℃～105℃
4.1V Detect Vrhys VDET×0.018 VDET×0.035 VDET×0.050 V Ta=−40℃～105℃
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TSZ22111・15・001
3/15
TSZ02201-0T2T0AN00130-1-2
25.Apr.2013 Rev.002
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